Abstract: A wind power generating apparatus has a small diameter blade and a large diameter blade to receive wind and rotate a shaft. A generation unit includes a rotor and a stator. The rotor rotates together with the shaft. The stator is fixed in a state facing the rotor. The generation unit generates electricity by rotating the rotor relative to the stator based on the rotation of the small diameter blade and the large diameter blade. A magnetic force supporting unit raises the shaft by a magnetic force and supports the shaft and the blade to freely rotate.